# operator-(std::move_iterator<Iter>, std::move_sentinel)

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< cpp‎ | iterator‎ | move iterator

template< std::sized_sentinel_for<Iter> S > friend constexpr std::iter_difference_t<Iter> operator-( const std::move_sentinel<S>& s, const move_iterator& i ); | (1) | (since C++20)
template< std::sized_sentinel_for<Iter> S > friend constexpr std::iter_difference_t<Iter> operator-( const move_iterator& i, const std::move_sentinel<S>& s ); | (2) | (since C++20)

Returns the distance between a `move_iterator` and a `move_sentinel`.

These function templates are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::move_iterator<Iter> is an associated class of the arguments.

### Parameters

i | - | std::move_iterator<Iter>
s | - | std::move_sentinel<S>, where `S` models std::sized_sentinel_for<Iter>

### Return value

1) s.base() - i.base()
2) i.base() - s.base()

### Example

| This section is incomplete Reason: no example

### See also

operator- (C++11) | computes the distance between two iterator adaptors (function template)

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